Pith Number

pith:Q6FIRNZX

pith:2012:Q6FIRNZXN36RZAIXCD6F3RLMOG

not attested not anchored not stored refs pending

Fast directional spatially localized spherical harmonic transform

J. D. McEwen, P. Sadeghi, R. A. Kennedy, S. Durrani, Y. Wiaux, Z. Khalid

arxiv:1207.5558 v2 · 2012-07-23 · cs.IT · astro-ph.IM · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q6FIRNZXN36RZAIXCD6F3RLMOG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:27:32.749973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

878a88b7376efd1c811710fc5dc56c7189daea3da135af500df05d47b6737a80

Aliases

arxiv: 1207.5558 · arxiv_version: 1207.5558v2 · doi: 10.48550/arxiv.1207.5558 · pith_short_12: Q6FIRNZXN36R · pith_short_16: Q6FIRNZXN36RZAIX · pith_short_8: Q6FIRNZX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/Q6FIRNZXN36RZAIXCD6F3RLMOG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 878a88b7376efd1c811710fc5dc56c7189daea3da135af500df05d47b6737a80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4a0d2ca1cafc5e79f6ace3d185331e5880d61c5a9bbea11fde89305b17f6133",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-23T23:13:24Z",
    "title_canon_sha256": "8234507e2fff1291c0063735636c638de0d7f25d76f3d20a21a35f91bac20019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5558",
    "kind": "arxiv",
    "version": 2
  }
}